Tuning the heater temperature control bed duet 3 (3.4 beta7)
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@dc42 Hello and good start, I try to add the parameter Y I let you know. Thank you very much. I wanted to suggest to insert in the Duet Web Control a feedback button so as to send to you directly the problems that are encountered to speed up the procedures.
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in this way putting Y3 in m303 works and quickly. now I see the stability and accuracy of the readings and update the outcome. Thank you
test ok
@dc42 5/1/2022, 18:40:15 Auto tuning heater 0 completed after 3 idle and 5 tuning cycles in 1753 seconds. This heater needs the following M307 command:
M307 H0 R0.456 K0.402:0.000 D8.73 E1.35 S1.00 B0
Send M500 to save this command in config-override.g
5/1/2022, 18:34:16 Auto tune starting phase 3, measuring
5/1/2022, 18:29:03 Auto tune starting phase 2, settling
5/1/2022, 18:11:06 Auto tune starting phase 1, heating up
5/1/2022, 18:11:01 M98 P"0:/macros/Tuning Bed"
Auto tuning heater 0 using target temperature 120.0°C and PWM 1.00 - do not leave printer unattended -
@dc42 I am using the machine intensively and I see that the temperature of the heating dish is very stable. so playing on the parameter Y tightening the hysteresis you can speed up the tuniong time and solve the problem of too long tuning times. if I notice other anomalies I communicate, for now thank you and ask if you can insert in the duet web control a button to immediately send any problems or requests for improvements ... Thank you
I have tested for a long time it seems to me that there are problems. although I performed the tuning successfully then sometimes when mold stops the bed heater without logic
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I have tested for a long time it seems to me that there are problems. although I performed the tuning successfully then sometimes when mold stops the bed heater without logic
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12/1/2022, 00:31:11 Auto tuning heater 0 completed after 3 idle and 5 tuning cycles in 1234 seconds. This heater needs the following M307 command:
M307 H0 R0.513 K0.572:0.000 D7.42 E1.35 S1.00 B0
Send M500 to save this command in config-override.g
12/1/2022, 00:26:54 Auto tune starting phase 3, measuring
12/1/2022, 00:22:51 Auto tune starting phase 2, settling
12/1/2022, 00:10:42 Auto tune starting phase 1, heating up
12/1/2022, 00:10:37 M98 P"0:/macros/Tuning Bed"
Auto tuning heater 0 using target temperature 100.0°C and PWM 1.00 - do not leave printer unattended
12/1/2022, 00:10:28 Upload of Tuning Bed successful after 0stuning concluded well but after a while an error occurs see attached photo
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Were the tuning results saved with M500 and M501 added to the end of config.g?
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Yes. I solved and I put all the indications in the site:
https://duet3d.dozuki.com/Wiki/Tuning_the_heater_temperature_control?revisionid=HEAD
to the voice
Heater failure bed: temperature rising too slowly firmware 3.4 and later -
@Phaedrux
Sorry to dig up an old post - I'm having similar issues with 3.4.4. I'm tuning a warmer to a target temperature of 40C. The oscillations are quite long to drop 5C - (~15 min cycles at ~20C ambient), and I'm now pushing 3 hours of tuning with no indications of letting up.(now 13:20)
12/29/2022, 10:55:48 AM Auto tune starting phase 3, measuring
12/29/2022, 10:19:25 AM Auto tune starting phase 2, settling
12/29/2022, 10:17:26 AM Auto tune starting phase 1, heating up
12/29/2022, 10:17:21 AM M303 H3 S40
Auto tuning heater 3 using target temperature 40.0°C and PWM 1.00 - do not leave printer unattendedI'm curious on the noise standpoint - is the noise an absolute value to determine iterations or is it relative (i.e. taking a 5% tolerance of 15 minutes for cooling is very different than something within 5 seconds.
I'm going to be pulling out the limit on the number of iterations - just didn't want to lose the data from all the iterations it's already done if possible. 3 hours is a long time to ask for a relatively slow moving heater.
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@TLAS the cycles are 5 initial oscillations and then a maximum of 25 recording oscillations. You can limit the amount of temperature drop from the set temperature (default of 5 degrees) using the Y parameter on M303.
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@jay_s_uk
Any way to force it to stop early and accept the parameters it calculates? -
@TLAS nope. Wait it out for it to complete for reset and start again.
Longest tuning cycle I heard of was 12 hours and I don't think that completed either
